/Engine/Source/Developer/DesktopPlatform/Public/InstalledPlatformInfo.h
Queries whether a platform can be displayed as an option, even if it's not supported for the specified project type
bool CanDisplayPlatform ( const [FString](API\Runtime\Core\Containers\FString) & PlatformName, [EProjectType](API\Developer\DesktopPlatform\EProjectType) ProjectType ) const